Check this reply
http://forum.murthy.com/topic/128675-stuck-outside-of-usa-because-of-covid-19/
"As you have noted, if a legal permanent resident (LPR) stays outside of the United States for a period greater than 180 days and less than a year, there is a rebuttable presumption that s/he has abandoned his/her status as a legal permanent resident. Additionally, the continuous residence requirement for Naturalization may also be interrupted. This again is a rebuttable presumption and under the current circumstances, the break may be exempted.
It is best to keep documentation to support the fact that one had the intention of returning to the U.S. within a stipulated time while returning to the United States. Further, if you end up staying for more than one year and you do not have a “Re-Entry Permit”, then you may have to apply for status as “Returning Resident” under SB-1 to return to the U.S. "
@newacct, maybe you would like to take note.

You filed an Immigration Petition. She did not. In theory, her J1 should not be an issue. Hundreds of residents have used their initiative to hook up with programs that let you use H1. That could be a possibility. On the other hand, staying away for 2 years could also work.

https://travel.state.gov/content/travel/en/us-visas/Visa-Reciprocity-and-Civil-Documents-by-Country/SaudiArabia.html
"Document Name: Birth Certificate/ Birth Certificate for Non-Saudis. Older versions of the birth certificate are either paper documents or small booklets issued by the Ministry of Health. Either of these is acceptable for immigration purposes. In the past, Saudi authorities would issue a ‘temporary’ birth certificate and hold the permanent document until the baby completed its vaccinations. These temporary birth certificates are also acceptable. For recent newborns, Saudi Authorities issue certificates in the shape of large notecards. These are acceptable for immigration purposes. When a baby is born, the hospital issues a birth notification to the Ministry of Civil Affairs. The parents can then receive the birth certificate from the Ministry. "
Cross chargeability would seem possible. Let a lawyer do the paperwork.

This may be a temporary move in view of the pandemic. You have to ask your supervisor/HR what the company intends in the longer term.
Will the job for which the GC was filed be available to you in the future ?

An H1 sponsor is mandated to revoke the H1 petition of employees who no longer work there. The AOS is not involved except that they may ask for an EVL in the future if they deem it necessary. The bottom line is that you need an appropriate job in the same or similar field in any case.